6249374209 has 4 divisors (see below), whose sum is σ = 6730095316. Its totient is φ = 5768653104.

The previous prime is 6249374191. The next prime is 6249374249. The reversal of 6249374209 is 9024739426.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2144153025 + 4105221184 = 46305^2 + 64072^2 .

It is a cyclic number.

It is not a de Polignac number, because 6249374209 - 2¹³ = 6249366017 is a prime.

It is a super-2 number, since 2×6249374209² = 78109356008228751362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6249374249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240360534 + ... + 240360559.

It is an arithmetic number, because the mean of its divisors is an integer number (1682523829).

Almost surely, 2^6249374209 is an apocalyptic number.

It is an amenable number.

6249374209 is a deficient number, since it is larger than the sum of its proper divisors (480721107).

6249374209 is a wasteful number, since it uses less digits than its factorization.

6249374209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480721106.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 6249374209 is about 79052.9835553346. The cubic root of 6249374209 is about 1841.9542690347.

The spelling of 6249374209 in words is "six billion, two hundred forty-nine million, three hundred seventy-four thousand, two hundred nine".